They are all good. But that's not a real tip. What you should be looking for is which distribution you feel themost comfortable with. RedHat has the reputation of being very easy to install. They provide special tools tomake the configuration easier. Debian also has some tools, but will usually require you to go on the commandline more often to configure the system. If you want to be on your own, and really learn how to edit configuration files then Slackware is for you. The Web site http://www.linux.org lists all the availabledistributions.
In the end, the best person to decide which distribution you like, is yourself.

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